PyObjC 1.3 Examplefest

Lots of new PyObjC examples made their way to svn this week:

• New IDNSnitch example in Inject that demonstrates how to monitor for the launch of another application, use objc.inject to load code into a target process, and override the implementation of an existing method but still call back into the original implementation (method swizzling).
• objc.IMP should do the right thing now. This type is returned by +[NSObject methodForSelector:] and +[NSObject instanceMethodForSelector:]
• New ToDos example in CocoaBindings that demonstrates how to use two array controllers for the same data, and how to use value transformers to alter the color of text. Originally from "Cocoa Bindings Examples and Hints", converted to PyObjC by u.fiedler.
• New Bookmarks example in CocoaBindings that demonstrates how to subclass NSArrayController to implement the NSTableView delegate drag and drop protocol, including copying of objects between documents and accepting URL drops from other applications. Also demonstrates re-ordering of the content array. Originally from "Cocoa Bindings Examples and Hints", converted to PyObjC by u.fiedler.
• New FilteringController example in CocoaBindings that demonstrates how to subclass NSArrayController to implement filtering of a NSTableView. Also demonstrates the use of indexed accessors. Originally from "Cocoa Bindings Examples and Hints", converted to PyObjC by u.fiedler.
• New ControlledPreferences example in CocoaBindings that demonstrates how to use Cocoa Bindings to simplify storing and retrieving user preferences. Originally from "Cocoa Bindings Examples and Hints", converted to PyObjC by u.fiedler.